var bustcachevar=1 //bust potential caching of external pages after initial request? (1=yes, 0=no)
var loadedobjects=""
var rootdomain="http://"+window.location.hostname
var bustcacheparameter=""
function ajaxpage(url, containerid, emailcontrolid)
{
var page_request = false
if (window.XMLHttpRequest) // if Mozilla, Safari, Firefox, Opera 8.0+, Safari
    page_request = new XMLHttpRequest()
else if (window.ActiveXObject) // ifInternet Explorer\
    { 
    try {
            page_request = new ActiveXObject("Msxml2.XMLHTTP")
        } 
    catch (e)
    {
    try{
            page_request = new ActiveXObject("Microsoft.XMLHTTP")
        }
    catch (e){}
        }
    }
else
    return false
    
    document.getElementById(containerid).innerHTML=loadstatustext    
    page_request.onreadystatechange=function()
    {
         loadpage(page_request, containerid, emailcontrolid)         
    }
if (bustcachevar) //if bust caching of external page
    bustcacheparameter=(url.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()
page_request.open('GET', url+bustcacheparameter, true)
page_request.send(null)
}
function loadpage(page_request, containerid, emailcontrolid){
if (page_request.readyState != 4)
{return;}
if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1))
document.getElementById(containerid).innerHTML=page_request.responseText
var index = document.getElementById(containerid).innerHTML.indexOf("already");
if(index != -1)
{
   document.getElementById(emailcontrolid).value = "";
}
//alert(page_request.responseText)
}
//////////
function checktxtEmail()
{
    if(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(document.form1.txtEmail.value))
    {
        document.form1.txtEmail.style.backgroundColor="white"
        return true;
    }
    else
    {  
        document.form1.txtEmail.focus();
        document.form1.imgbutCont.focus();
        document.form1.txtEmail.style.backgroundColor="yellow"
        alert("Invalid email address, Pls re-enter")
        return false;
    }
}